Siemens sinamics g120 Operating Instructions Manual page 12

Installing
3.3 Terminal strips behind the upper front door
Factory setting of the terminal strips
The factory setting of the terminals depends on the Control Unit.
Control Units with USS or CANopen interface
The fieldbus interface is not active.
Image 3-3 Factory setting of the CU250S-2 and CU250S-2 CAN Control Units
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Compact Operating Instructions, 01/2016, A5E37058195B AA
CU250S-2 Control Units